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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
A9N61533
A9N61533
In Stock
From
$39.50
Schneider Electric
-
-
A9N61537
A9N61537
In Stock
From
$64.34
Schneider Electric
-
-
A9R44440
A9R44440
Limited Stock
From
Get Price
Schneider Electric
-
-
C60N-C4
C60N-C4
In Stock
From
$56.91
Schneider Electric
-
-
GV3-M10
GV3-M10
In Stock
From
$91.84
Schneider Electric
-
-
JJA36250YP
JJA36250YP
In Stock
From
$2,277.23
Square D
250
600
KCJ34225
KCJ34225
In Stock
From
$116.33
Square D
225
480
LAL36275
LAL36275
In Stock
From
$1,283.34
Schneider Electric
-
-
LJA36400U54XEHACSOYH2
LJA36400U54XEHACSOYH2
In Stock
From
$8,511.15
Square D
400
600
LV431100
LV431100
In Stock
From
$752.66
Schneider Electric
-
-
LV848231
LV848231
Limited Stock
From
Get Price
Schneider Electric
-
-
M9F11106
M9F11106
In Stock
From
$141.40
Schneider Electric
-
-
M9F11204
M9F11204
In Stock
From
$146.25
Schneider Electric
-
-
M9F22103
M9F22103
Limited Stock
From
Get Price
Schneider Electric
-
-
M9F23110
M9F23110
In Stock
From
$121.34
Schneider Electric
-
-
M9F23206
M9F23206
In Stock
From
$73.27
Schneider Electric
-
-
M9F42102
M9F42102
In Stock
From
$77.79
Schneider Electric
-
-
M9F42103
M9F42103
In Stock
From
$85.30
Schneider Electric
-
-
M9F42104
M9F42104
In Stock
From
$71.82
Schneider Electric
-
-
M9F42105
M9F42105
In Stock
From
$84.99
Schneider Electric
-
-
M9F42110
M9F42110
In Stock
From
$93.79
Schneider Electric
-
-
M9F42115
M9F42115
In Stock
From
$83.81
Schneider Electric
-
-
M9F42140
M9F42140
In Stock
From
$67.02
Schneider Electric
-
-
M9F42320
M9F42320
In Stock
From
$189.72
Schneider Electric
-
-
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.